States that an instant check registration entitles the registrant, for a 3-year period, to contact the national instant criminal background check system for information about any individual desiring to obtain a firearm at a gun show if a vendor requests assistance.

Requires child safety devices to be sold along with handguns.

Prohibits children under the age of 18 from possessing firearms or ammunition.

Increases the penalty for committing a crime using a gun with a large-capacity magazine to a minimum 15-year jail sentence.